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12729411 = 321974441
BaseRepresentation
bin110000100011…
…110001000011
3212221201110200
4300203301003
511224320121
61132500243
7213124662
oct60436103
925851420
1012729411
117204882
12431a683
132838cc6
141994dd9
1511b6a26
hexc23c43

12729411 has 12 divisors (see below), whose sum is σ = 19354920. Its totient is φ = 8039520.

The previous prime is 12729391. The next prime is 12729439. The reversal of 12729411 is 11492721.

12729411 is nontrivially palindromic in base 2.

It is a de Polignac number, because none of the positive numbers 2k-12729411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12729491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37050 + ... + 37391.

It is an arithmetic number, because the mean of its divisors is an integer number (1612910).

Almost surely, 212729411 is an apocalyptic number.

12729411 is a deficient number, since it is larger than the sum of its proper divisors (6625509).

12729411 is a wasteful number, since it uses less digits than its factorization.

12729411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74466 (or 74463 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12729411 is about 3567.8300127669. The cubic root of 12729411 is about 233.4906188963.

The spelling of 12729411 in words is "twelve million, seven hundred twenty-nine thousand, four hundred eleven".

Divisors: 1 3 9 19 57 171 74441 223323 669969 1414379 4243137 12729411